The myostatin inhibitor athletes reach for when genetics get in the way. YK-11 is researched for hard, dry mass and explosive strength by limiting the protein that caps growth. 10mg × 60 capsules.
Myostatin is the brake on muscle growth. YK-11 is researched to ease off that brake.
Limits the protein that caps muscle growth, helping you push past stubborn plateaus.
Known for dense, hard-looking gains and improved muscle definition rather than smooth bulk.
Rapid strength progression reported across research logs within the first few weeks.
Research suggests YK-11 raises follistatin — a key driver of new muscle growth.
Supports building muscle while staying lean — ideal for a hard, conditioned look.
Every batch third-party verified for identity and purity. COA on request.
A potent compound that demands precise dosing — so we dose it precisely.
Pharma-grade YK-11, dosed at 10mg per capsule. Many logs split this across the day.
Enough for a standard 6–8 week research cycle at typical dosing.
A shorter active window means splitting the dose helps keep levels steady.
Third-party HPLC tested. Certificate of analysis available on request.
Suggested use (research logs): 5–10mg daily, often split AM/PM, in cycles of 6–8 weeks. YK-11 is potent — start low. A proper PCT is recommended after every cycle.
Tax included · 60 capsules · third-party tested
Hardest I've ever looked. Strength climbed fast and the pumps were unreal. Splitting the dose worked best for me.
Stacked with RAD-140 and the density was next level. Quality looks legit.
Potent stuff — started low like they say. Great recomp over 8 weeks.
YK-11 is researched as a myostatin inhibitor — it limits myostatin, the protein that restricts muscle growth, and is associated with hard, dense gains.
Research logs typically use 5–10mg daily, often split into morning and evening doses, across a 6–8 week cycle. It's potent — start at the low end.
Yes — a proper post-cycle therapy is recommended after every cycle. See our PCT and Enclomiphene.
Many athletes pair YK-11 with RAD-140 or MK-677. Always research interactions and keep doses conservative.
Every batch is third-party tested for purity and identity. COA available on request.
Hard, dense, dry mass for athletes who've hit the wall. Limited stock at €49.99.
I WANT YK-11Sold as a research compound for laboratory and educational use. Not a medicine; not evaluated by the EMA or FDA; not intended to diagnose, treat, cure or prevent any disease. Not for use by anyone under 18 or by women who are pregnant or breastfeeding. Consult a qualified healthcare professional before use.
UK: free delivery, 2–3 business days.
EU & worldwide: calculated at checkout, fully tracked. Discreet, plain packaging on every order.
30-day returns on unopened items in original packaging. Return shipping is paid by the customer. Email us to start a return.
SSL-encrypted, GDPR-compliant checkout. Every batch is third-party lab-tested (Janoshik) — certificate of analysis available on request.
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